Steam-boiler feed-water system.



No. 63l,735. Patented Aug. 22, |899. E. A. CLOUSNITZER.

STEAM BOILER FEED WATER SYSTEM.

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UNITED STATES PATENT OFFICE'.

ERNEST ALBERT OLOUSNITZER, OF COLORADO, TEXAS.

STEAM-BOILER FEED-WATER SYSTEM.

SPECIFICATION forming part of Letters Patent No. 631,735, dated August 22, 1899.

Application filed February l0, 1899. Serial No. 705,196. (No model.)

To all whom t may concern:

Be it known that I, ERNEST ALBERT CLoUs- NITZER, a citizen of the United States, residing at the city of Colorado, county of Mitchell, and State of Texas, have inventeda certain new and useful Improvement in Steam- Boiler Feed-Vater Systems; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable persons skilled in the artto which it appertains to make and use the same.

My invention relates to improvements in steam-boiler feed-Water systems by means of which the Water that is fed to the boiler may be heated to a temperature approaching the temperature of the water contained in the boiler before it is admitted thereto.

It also consists in a novel system of piping wherein the natural circulation of the water is in a given direction, whereas the feed-Water as it is pumped into the boiler may be in an opposite direction through the same system ofpipes.

It further consists in a novel arrangement of pipes whereby a portion of the hottest Water contained in the boiler may be siphoned out by the passage of the feed-water through the system of pipes and mixed with the feedwater, reheated, and forced again into the boiler.

Vith these and other objects in View, more particularly explained hereinafter, my invention consists in the novel construction and combination of the parts more particularly pointed out in the following specification and appended claim.

In the accompanying drawings, which form part hereof, Figure l is a side elevation of a boiler, the brickwork in section, showing my system of piping. Fig. 2 is a front elevation. Fig. 3 is a rear elevation.

Like letters and gures of reference refer to similar parts in the various views.

The pipe a may be connected to any Wellknown means for forcing feed-water into a boiler-such as a pump, injector, or the like. A portion of pipe a and all of pipe Z) are supported within the brickwork and parallel with the boilerwithin the furnace, subject to the indirect heat from the furnace. I have shown a ledge or projection c, which may be built integral with the brickwork, which I consider to be a very convenient means for supporting the pipes. Pipe b extends through the furnace to the rear end'of the boiler, Where it is connected to the usual boiler blow-off pipe d by the pipe c. 1 The boiler blow-off pipe d is connected withy the bottom of the boiler, as usual.

Near the front end of the boiler a pipe f extends from'thetop of the boiler down belovr low-water line, as shown in Figs. 2 and 3. It is connected to pipe b by T- f', as shown. Pipes l) and d may be blown off through pipes g and h by opening valves l and 2, respectively. VhenA it is desirable to blow off either pipe separately, valve No. 3 should be closed. At all other times it is to remain open. Valve No. 4. should be closed when the pump has been stopped. Valve No. 5 may be closed when it is desired to feed into the bottom of the boiler without siphoning Water from the boiler, as before explained; but this valve is not essential to theoperation of my system. Check-valve No. 6 is such as are usually found in boiler-feed pipes. Unions b' and d are placed in the respective horizontal pipes b and d, so that their interior may be more accessible in order that scale, sediment, or the like may be scraped out.

The operation of my device is as follows: Valves l, 2, and l are normally closed. The water contained in pipes c and bis heated to a high degree by the heat from the furnace, the heating-surface of the pipes being greater in proportion to their contents than the boiler. The heated water contained therein will rise through pipe f and pass into the boiler. Water in the bottom of the boiler will descend through pipe d, thence throughpipe e into pipe b and into pipe f, completing the route of circulation. The circulation in this direction will continue as long as the conditions described prevail, the result of which is to add considerably to the desirable steaming qualities of the boiler by increasing its efficiency and capacity. Now when it becomes necessary to add more water to the boilersupply, the pump Will force the water through the pipes c and b. It will pass through pipe b into pipes e and d into the bottom of the boiler, because the direction is in a straight IOO line and because when the Water rst enters pipe a it is cold and Will lie upon the bottom of the pipe, but having attained a momentum in a given straight direction it will continue in that-direction instead of ascending pipe f.

The Water :flowing in pipe b will cause the siphon f to discharge into pipe b, which will mix with the feed=water therein. This will equalize the temperatures of the Water in the boiler and the boiler-feed system to the economical benefit of the fuel-supply.

I prefer to use one straight line of pipe,

such as pipes a., b, and d.l I have found that they present sufficient surface for the purpose, and they may be easily scraped out to remove sediment, scale, dac., by simply disconnecting them at unions b and d' and by passing a scraper through them for the purpose.

I have been using a system such as I have described for more than a year just past, and I iind from actual experience that I have realized a saving of twenty-ve per cent. or more in the fuel necessary for my boilers.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

A Water-heater feeder and circulating system for steam-boilers, the combination of a heater-pipe Within the furnace placed longitudinally parallel With the boiler, a ledge ex tending from the brickwork of the boiler-setting for supporting said pipe, a Siphon-pipe extending into the Water-space Within the boiler, and connected to the said heater-pipe; a blow-off pipe connected to the bottom of said j boiler and parallel with the said heater-pip@ 

